FUNCTION MANUAL, INSTALLATION GOLD RX/PX/CX/SD Generation F. Applicable to Program Version 1.27 and newer versions

Transcription

1 FUNCTION MANUAL, INSTALLATION GOLD RX/PX/CX/SD Generation F Applicable to Program Version 1.27 and newer versions

2 Content 1. Image Management Main Setup Filter Calibration Functions Airflow Status Operation level Regulation mode Optimize Set point displacement Unit Air adjustment Outdoor air compensation Booster diffusers Automatic operation Temperature Status s Regulation mode Unit of temperature Set point displacement Neutral zone External temperature sensors Regulation sequence Min. exhaust air Morning Boost Heating Boost Cooling Boost Intermittent night heat Summer night cool Down regulation (airflow/pressure) Time and schedule Time and date Schedule s Day schedule Exceptions schedule Calendar 1 and Prolonged operation Energy monitoring Filters Software Language Alarm s Fire alarms External alarms Temperature protection Temperature alarm limits Service period Alarm priority Log Continuous log Log sender Air handling unit s Fan status Operation time VOC/CO 2 sensor Automatic functions Heat Status Pre-heat Extra regulation sequences 1 and Reheat Xzone Electric air heater Season Heat Automatic functions Cool Status Extra regulation sequences 1 and Cool Xzone COOL DX Delay time Outdoor air limits Airflow, limits Heat/Cool recovery Status Carry over control Efficiency measurement Defrost Calibration/Optimization (GOLD PX) Automatic functions HC, reversible heat pump/chiller SMART Link Humidity Status Humidifying Dehumidifying Humidifier alarm ReCO All Year Comfort MIRU Inputs/Outputs Communication External Port B Wireless LAN EIA Modbus TCP BACnet IP EXOline TCP Operation level communication Base Users Notes Manual test IQnavigator (hand-held terminal) Connect to IQlogic Backlight brightness Acoustics The document was originally written in Swedish. 2 We reserve the right to alter specifications without notice.

3 1. Image Management If the touch screen is at rest, press the hand-held terminal's On/ Off button. Profile selection Profile selection. Press on installation. Kod=1111. Guides Dashboard Functions Timer, low speed Stop Time and Energy Air flow Temperature Filters Software schedule monitoring Main setup Filter calibration Alarm log Language Alarm prioritys Log Air handling unit Heat Cool Log graph Flow chart Heat/Cool recovery All Year SMART Link Air humidity ReCO 2 Comfort MIRU Control Main setup. See Section2. Filter calibration. See Section3. Dashboard. See Section 2.2 in the Operating Procedures Manual of the IQnavigator hand-held micro terminal. Functions. See Section 4 We reserve the right to alter specifications without notice. 3

4 2. Main Setup Main setup can be selected when installing the AHU and is an aid for configuring and starting up the AHU. Time and date, air flow unit, airflow regulation mode, airflow operation level, temperature regulation, temperature s and fan position s can be entered here. Main setup For more detailed information, see the relevant function below. Main setup See Section See Sections and See Section See Section See Section See Section See Section Time and date 2 Air flow unit 3 Air flow regulation mode 4 Air flow operation level 5 Temperature regulation 6 Temperature s 7 Fan position 8 Finish Date Weekday Time zone Time Wednesday TIME AND DATE 3. Filter Calibration All the filters should be calibrated when the fans are started up for the first time and when the duct system, air terminals and commissioning plates, if required, have been installed and commissioned. After that every time filters are replaced. Calibration should then be activated for the filter or filters that are new. Relevant filters are the Supply air prefilter, Extract air pre-filter, Supply air AHU filter, Extract air AHU filter, SA and EA AHU filter and Supply air end filter. When filter calibration is activated, the air handling unit runs at the preset max. speed (depending on the functionality selected) for about 70 seconds. After the filters have been calibrated, a pressure rise of up to 100 Pa is permissible (as the filters arrest impurities) after which an alarm indicating fouled filter is initiated. The alarm limit can be changed under Installation, Functions, Filters. The filter function must be activated (see Section 4.5) in order to make it possible to enable filter calibration and alarm functions of the end filter and pre-filter in GOLD SD supply air and extract air handling units. Filter calibration Filter calibration Supply air pre-filter Extract air pre-filter SA and EA pre-filter Progress CALIBRATION MODE Supply air AHU filter Extract air AHU filter SA and EA AHU filter Supply air end filter Start 4 We reserve the right to alter specifications without notice.

5 4. Functions 4.1 Airflow Status All the relevant values can be read here. Used for performance checks Operation level The functions selected and the min. and max. airflows of each AHU size (see the table below) determine which values can be set. Depending on the function selected, flows can be set as follows (l/s, m 3 /s, m 3 /h, cfm), pressure (Pa, psi, in.wc) or input signal strength (%). Airfl ow Status Operation level Low speed Should always be preset. The value for low speed cannot be higher than the value for high speed. Low speed can be set to 0, which means that the AHU is idle. High Speed Should always be preset. The value or pressure for high speed cannot be lower than the value for low speed. Max. speed Should always be preset. Used mainly for filter calibration. While filter calibration is in progress, the max. speed should be as high as the ventilation system permits without causing any breakdown. Also used for the pressure regulation, boosting, Heating Boost and Cooling Boost functions. The value for max speed cannot be lower than the value for high speed. Min. /Max. speed Used for the demand control function (the previous section also applies to max. speed). Preset the lowest and highest permissible flows for each fan. This means that the fans will not operate outside these limits, regardless the load. Min./Max. flows AIRFLOW MIN. FLOW FOR AIRFLOW REG., ALL VARIANTS 2 MAX. FLOW, ONE-PIECE AHU ROTARY HEAT EXCH. (RX) MAX. FLOW, ONE-PIECE AHU PLATE H. EXCH. (PX) MAX. FLOW, ONE-PIECE AHU COIL H. EXCH. (CX) When adjusting the flow, round off the value to the nearest settable step. 2) If pressure regulation is used, the airflow can be regulated to zero, however this presupposes a certain static pressure drop in the ducting (approx. 50 Pa). MAX. FLOW, SA AND EA AHU S (SD) SIZE m 3 /h 1 m 3 /s m 3 /h m 3 /s m 3 /h m 3 /s m 3 /h m 3 /s m 3 /h m 3 /s GOLD , , , ,6 GOLD , , , ,8 GOLD , , , ,8 GOLD , , , ,2 GOLD , , , ,2 GOLD , , , ,8 GOLD , , , ,8 GOLD , , , ,8 GOLD , , , ,8 GOLD , , , ,0 GOLD , , , , ,0 GOLD , , , , ,0 GOLD , , , ,6 GOLD , , , ,0 GOLD , , , ,0 GOLD , , , ,0 GOLD , , , ,0 GOLD , , , ,0 We reserve the right to alter specifications without notice. 5

6 4.1.3 Regulation mode The regulation moden can be selected individually for the supply air or the extract air respectively. Regulation mode Airflow Flow regulation involves operating the air handling unit to keep the preset airflow constant. The speed of the fans is automatically regulated to provide correct airflow even if the filters begin to become clogged, if air diffusers become blocked, etc. A constant airflow is advantageous, since the airflow is always at the level preset from the beginning. It should however be noted that everything that increases the pressure drop in the ventilation system, such as the blocking of air devices and dust accumulating in the filters, causes the fans to run at a higher speed. This causes higher power consumption and may also cause discomfort to the occupants such as excessive sound. Duct pressure The airflow automatically varies to provide constant pressure in the ducting. This type of regulation is therefore also called VAV Regulation (Variable Air Volume). Pressure regulation is used when e.g. damper operations increase the air volume in sections of the ventilation system. The duct pressure is measured by an external in-duct pressure sensor which is connected to the control unit's BUS communication. The set point required (separate for low speed and high speed) is preset in Pa. The function can be limited so that the fan speed will not exceed the preset max. values. Demand The airflow required is regulated in response to 0-10 V input signals from an external sensor, such as a carbon dioxide sensor, connected to control unit terminals The required set point is set as a percentage of the input signal or in ppm. The function can be limited so that the flow will not be higher or lower than the preset max. and min. values respectively. Slave The flow is constantly regulated to the same value as the other fan. If one fan is pressure-controlled or demand-controlled, the other one can be controlled as a slave to generate the same airflow. The performance of the slave fan can be restricted if its maximum flow is set to a lower airflow rate. It is not possible to control both fans as slaves. If you select one fan to operate as a slave, you lose the option to select the other fan as a slave. Supply air Extract air s Airflow Duct pressure Demand Slave Airflow Duct pressure Demand Slave 6 We reserve the right to alter specifications without notice.

7 4.1.4 Optimize The Optimize function optimises the air handling unit's airflow for the connected WISE system; see separate documentation for the WISE. The function requires that the duct pressure is preset regulation type. Optimize Optimize On/Off Off Set point displacement The airflow is regulated between two flows in response to an 0-10 V DC input signal from an external signal, for example a potentiometer. The TBIQ-3-2 IQlogic + module accessory is required. Set point displacement can be used e.g. in assembly halls, where a higher rate of air change is needed under full-load conditions. The function is activated only when the AHU fans operate at high speed. On a 0-10 V DC signal, the fans are gradually accelerated from the AHU s high speed to its max. speed. On a max. input 10 V DC signal, the AHU fans operate at max. speed. The function must be activated separately for the supply air fan and for the extract air fan. Set point displacement Supply air On/Off Off Extract air On/Off Off Unit The required unit of airflow and unit of pressure can be set. Unit s Unit of airflow l/s m 3 /s m 3 /h cfm m 3 /s Unit of pressure Pa psi in.wc Pa Air adjustment The speed of the fans can be locked for up to 72 hours. When the function is activated, the speed is locked at the current speed of operation. This is practical when making airflow adjustments in the duct system and air terminals. The desired period is preset, but can be interrupted earlier by selecting Stop or by changing the time to 0. Air adjustment We reserve the right to alter specifications without notice. 7

8 4.1.8 Outdoor air compensation Outdoor air compensation of the airflow can be activated if you want to change the airflow for specific outdoor air temperatures. An individually adjusted curve regulates the ratio between the airflow and the outdoor air temperature. The curve has four adjustable breakpoints.. If the function is selected solely for low speed or high speed operation, the curve will regulate only one of these. The airflow for the operating case that has not been selected will then be according to the preset set point for airflow/duct pressure. In the flow regulation mode, the current set point for airflow is changed. When pressure regulation is selected, the current set point for pressure is changed. The function has no effect if the airflow is demand-controlled. The airflow change is expressed in the preset airflow unit and pressure in Pa. Outdoor air compensation mode /Low speed/high speed/low speed and High speed X1, breakpoint, outdoor air temp C -20 C X2, breakpoint, outdoor air temp C -10 C X3, breakpoint, outdoor air temp C +10 C X4, breakpoint, outdoor air temp C +20 C Supply air, flow Y1, breakpoint, supply air 25% of max. airflow for air handling unit Y2, breakpoint, supply air 25% of max. airflow for air handling unit Y3, breakpoint, supply air 25% of max. airflow for air handling unit Y4, breakpoint, supply air 25% of max. airflow for air handling unit Extract air, flow Y1, breakpoint, extract air 25% of max. airflow for air handling unit Y2, breakpoint, extract air 25% of max. airflow for air handling unit Y3, breakpoint, extract air 25% of max. airflow for air handling unit Y4, breakpoint, extract air 25% of max. airflow for air handling unit Supply air, pressure Y1, breakpoint, supply air Pa 100 Pa Y2, breakpoint, supply air Pa 100 Pa Y3, breakpoint, supply air Pa 100 Pa Y4, breakpoint, supply air Pa 100 Pa Extract air, pressure Y1, breakpoint, extract air Pa 100 Pa Y2, breakpoint, extract air Pa 100 Pa Y3, breakpoint, extract air Pa 100 Pa Y4, breakpoint, extract air Pa 100 Pa Outdoor air compensation Y = Set point for airflow, m 3 /s 3,0 2,5 2,0 1,5 1,0 0,5 Example: X = Outdoor air temperature C Flow regulated air handling unit The same principle can be applied to a pressure regulated AHU, however this well cause a reduction in pressure in Pa. If the outdoor air temperature is under -20 C (X, the flow set point will be a constant 2.0m 3 /s (Y. If the outdoor air temperature is between -20 C (X and -10 C (X2), the airflow will decrease from 2.0 m 3 /s (Y to 1.0 m 3 /s (Y2) as shown in the curve. If the outdoor air temperature is between -10 C (X2) and 10 C (X3), the flow set point will be a constant 1.0 m 3 /s (Y2 and Y3). If the outdoor air temperature is between 10 C (X3) and 20 C (X4), the airflow will increase from 1.0 m 3 /s (Y3) to 2.5 m 3 /s (Y4) as shown in the curve. If the outdoor air temperature is over 20 C (X4), the flow set point will be a constant 2.5 m 3 /s. 4 See table for min./max. flows in Section We reserve the right to alter specifications without notice.

9 4.1.9 Booster diffusers The function for Booster diffusers is used for controlling the air damper inside the air terminal and can be activated for heating or cooling. Heating or cooling is modulated depending on whether the supply air is warmer or colder than the room/extract air. An indicator is displayed if heating or cooling is active. The IQlogic + module, TBIQ-3-2, accessory is required. Booster diffusers Booster diffusers On/Off Off Automatic operation Density-corrected airflow The density of the air is different at different temperatures. This means that a specific volume of air changes at various air densities. The AHU automatically corrects this, so that correct air volume is always obtained. The control equipment always displays the corrected airflow. Pressure balance corrected extract airflow The extract airflow is corrected by continuously measuring the pressure balance across the rotary heat exchanger. The extract airflow is guaranteed with consideration given to the air purging and leakage air flow. We reserve the right to alter specifications without notice. 9

10 4.2 Temperature N.B.! If the entry of new temperature s involve large changes, you should first stop the AHU before you enter the new s. Specific temperatures, such as set points, should be specified in C or F, whereas displacements, deviations and differentials should be specified in K (Kelvin). If only GOLD SD supply air handling units are installed, they require an external room sensor for ERS, ORE and extract air regulation Status All the relevant values can be read here. Used for performance checks s ERS Regulation 1 ERS regulation refers to Extract air temperature-related Supply air temperature regulation. This means that the temperature of the supply air is regulated in relation to the temperature of the extract air. Under normal circumstances, the supply air temperature is regulated to be a few degrees lower than the extract air temperature. In this way, the heat exchanger will provide optimal performance, and this means excellent operating economy. ERS control is suitable for use when there is surplus heat in the premises generated e.g. by machinery, lighting or people, and the premises have supply air diffusers suitable for discharging air below room temperature. ERS Regulation 1 The control unit regulates the ratio between the supply air and extract air temperature according to a factory-preset curve. See the diagram to the right. The step in the curve, breakpoint and differential can be changed. Extract related supply air-1 step Extract related supply air-1 diff 1-7 K 3 K Extract related supply air-1 breakpoint (refers to extract air temperature) C 22 C Temperature Status s ERS Regulation 1 Supply air temperature set point C means: ERS 1 diff. Breakpoint Extract air temperature C Step 1 Step 2 Step 3 Step 4 If the extract air temperature is below 22 C (breakpoint), the supply air temperature set point will be automatically regulated to be 3 K (diff.) lower. If the extract air temperature is above 22 C, the supply air temperature set point will constantly be 19 C (step 2). The for breakpoint and deviation are limited by the min. and max. s We reserve the right to alter specifications without notice.

11 ERS Regulation 2 Used if the factory preset performance curve in the ERS Control 1 function does not provide the results desired to meet special needs and conditions. Depending on which have been entered, the installation of an air heater for reheating may be required. An individually adjusted curve regulates the ratio between the supply air and the extract air temperature. The curve has four adjustable breakpoints.. See the diagram to the right. Extract air temperature Extract related supply air-2 X C 15 C Extract related supply air-2 X C 20 C Extract related supply air-2 X C 22 C Extract related supply air-2 X C 22 C Supply air temperature set point Extract related supply air-2 Y C 20 C Extract related supply air-2 Y C 18 C Extract related supply air-2 Y C 14 C Extract related supply air-2 Y C 12 C The set point displacement and Summer night cool functions can also affect the preset temperatures. Supply air regulation Supply air regulation involves maintaining a constant supply air temperature without consideration to the load in the premises. This type of regulation can be used when the load and temperatures of the premises are predictable. In most cases this requires the installation of an air heater for reheating, possibly an air cooler as well. Supply air (temp. set point) 0-40 C 21 C ERS Regulation 2 Y = Supply air temperature set point C X = Extract air temperature C Breakpoints according to factory involve the following: If the extract air temperature is below 15 C (X, the supply air temperature set point will constantly be 20 C (Y. If the extract air temperature is between 15 C (X and 20 C (X2), the supply air temperature set point is regulated from 20 C (Y down to 18 C (Y2) as shown in the curve. If the extract air temperature is between 20 C (X2) and 22 C (X3), the supply air temperature set point is regulated from 18 C (Y2) down to 14 C (Y3) as shown in the curve. When the extract air temperature is 22 C (X4), the supply air temperature set point is regulated from 14 C (Y3) down to 12 C (Y4). If the extract air temperature is over 22 C (X4), the supply air temperature set point will constantly be 12 C (Y4) Extract air regulation Extract air control involves maintaining a constant temperature in the extract air duct (the premises), by regulating the supply air temperature. This provides a uniform temperature in the premises regardless of the load and this type of regulation requires the installation of an air heater for reheating; possibly a cooling coil as well. The extract air temperature is measured by the air handling unit's internal temperature sensor. If this internal temperature sensor does not give an adequate representative extract air temperature reading, an external room temperature sensor can be installed and wired to the control unit s communications BUS (optional COM1-3). Extract air (temp. set point) 0-40 C 21 C Supply air, min C 16 C Supply air, max C 28 C We reserve the right to alter specifications without notice. 11

12 ORS regulation ORS regulation refers to Outdoor air temperature-related Supply air temperature regulation. This means that the temperature of the supply air is regulated in relation to the temperature of the outdoor air. An individually adjusted curve regulates the ratio between the supply air and the outdoor air temperature. The curve has four adjustable breakpoints. s (see also diagram to the right): Outdoor air temperature Outdoor related supply air X C -20 C Outdoor related supply air X C -10 C Outdoor related supply air X C 10 C Outdoor related supply air X C 20 C Supply air temperature set point Outdoor related supply air Y C 21.5 C Outdoor related supply air Y C 21.5 C Outdoor related supply air Y C 21.5 C Outdoor related supply air Y C 21,5 C ORE regulation ORE regulation refers to Outdoor air temperature-related Extract air temperature regulation. This means that the extract air temperature is regulated in relation to the outdoor air temperature. An individually adjusted curve regulates the ratio between the extract air and the outdoor air temperature. The curve has four adjustable breakpoints. s (see also diagram to the right): Supply air, min C 16 C Supply air, max C 28 C Outdoor air temperature Outdoor related extract air X C -20 C Outdoor related extract air X C -10 C Outdoor related extract air X C 10 C Outdoor related extract air X C 20 C Extract air temperature set point Outdoor related extract air Y C 21.5 C Outdoor related extract air Y C 21,5 C Outdoor related extract air Y C 21,5 C Outdoor related extract air Y C 21,5 C ORS regulation Y = Supply air temperature set point C ORE regulation Y = Extract air temperature set point C X = Outdoor air temperature C Example: If the outdoor air temperature is under -30 C (X, the supply air temperature set point will constantly be 18 C (Y. If the outdoor air temperature is between -30 C (X and -10 C (X2), the supply air temperature set point is regulated from 18 C (Y up to 20 C (Y2) as shown in the curve. If the outdoor temperature is between -10 C (X2) and +10 C (X3) the supply air set point will constantly be 20 C (Y3). If the outdoor air temperature is between +10 C (X3) and +30 C (X4), the supply air temperature set point is regulated from 20 C (Y3) down to 18 C (Y4) as shown in the curve. If the outdoor air temperature is over 30 C (X4), the supply air temperature set point will constantly be 18 C (Y4) X = Outdoor air temperature C Example: If the outdoor air temperature is under -30 C (X, the extract air temperature set point will constantly be 18 C (Y. If the outdoor air temperature is between -30 C (X and -10 C (X2), the extract air temperature set point is regulated from 18 C (Y up to 20 C (Y2) as shown in the curve. If the outdoor temperature is between -10 C (X2) and +10 C (X3) the extract air set point will constantly be 20 C (Y3). If the outdoor air temperature is between +10 C (X3) and +30 C (X4), the extract air temperature set point is regulated from 20 C (Y3) down to 18 C (Y4) as shown in the curve. If the outdoor air temperature is over 30 C (X4), the extract air temperature set point will constantly be 18 C (Y4) We reserve the right to alter specifications without notice.

13 4.2.3 Regulation mode Select ERS 1, ERS 2, Supply air, Extract air, ORS or ORE temperature regulation. Seasonal controlled temperature regulation makes it possible to have two different temperature regulation modes that alternate at preset outdoor temperatures. Seasonal controlled temperature regulation operates with the air handling unit's internal temperature sensor, however for the best performance we recommend external outdoor temperature sensor TBLZ ; see separate installation instructions. Enable seasonal controlled temperature regulation and temperature regulation (ERS 1, ERS 2, Supply air, Extract air, ORS or ORE). Set the temperature at which seasonal controlled temperature regulation shall be enabled and disabled respectively. By a span between the different temperatures, unwanted switching operations between the types of regulation can be avoided. Seasonal controlled temperature regulation is indicated with a lamp that is lit green when active. Regulation mode Temperature control ERS 1/ERS 2/Supply Supply air air/extract air/ors/ ORE Seasonal controlled temperature On/Off Off regulation Seasonal controlled temperature regulation ERS 1/ERS 2/Supply air/extract air/ors/ Extract air Seasonal controlled temperature regulation, enabled Seasonal controlled temperature regulation, disabled ORE C 0 C C 20 C We reserve the right to alter specifications without notice. 13

14 4.2.4 Unit of temperature The desired unit of temperature can be set. Unit of temperature s Unit C/ F C Set point displacement Used for changing the supply air and extract air temperature set points by means of an external 0-10 VDC signal. For example, the temperature can be increased or decreased at certain times of the day by means of an external timer or potentiometer. The accessory, IQlogic + module TBIQ-3-2, is required. The set point can be influenced by ±5 C. If the AHU is operating in the supply air regulation or ORS regulation mode, the supply air temperature set point is displaced and the AHU is operating in the extract air regulation or ORE regulation mode, the extract air temperature set point is displaced. When the AHU is operating in the ERS regulation 1 mode, the difference between extract air and supply air is influenced. The difference cannot be less than 0 C. The difference will decrease as the input signal increases. If the AHU is operating in the ERS regulation 2 mode, the supply air set point will be displaced. When the function is activated, the set point is displaced as plotted in the diagram to the right. Set point displacement will not affect any possible extra temperature zone (Xzone) which regulates according to its ordinary set point if set point displacement is in operation. Set point displacement On/Off Off Set point displacement C Set point displacement Control signal V DC Set point displacement involves the following: Control signal 0 V DC: The set point is decreased by 5 C. Control signal 5 V DC: No change in set point. Control signal 10 V DC: The set point increases by 5 C We reserve the right to alter specifications without notice.

15 4.2.6 Neutral zone The neutral zone prevents the cooling and heating systems from counteracting each other. The preset neutral zone is added to the set point for heating and the sum of these provides the set point for cooling. When extract air regulation is active, the supply air set point is not affected. The neutral zone has no effect if the unit is operating in the ERS regulation mode. Neutral zone Supply air, temperature control K 0.5 K Extract air, temperature control K 0.5 K External temperature sensors An extract air duct temperature sensor, TBLZ-1-76, can be connected to the air handling unit s control circuit card. See separate instructions for installation. Up to four external room temperature and/or outdoor temperature sensors can be wired to the air handling unit s control circuit card. The TBLZ room temperature sensor or TBLZ outdoor temperature sensor accessories should be used. See separate installation instructions. The sensor can be selected to control only intermittent night heat and/or summer night cooling (the AHU is then controlled during the daytime in response to signals from the internal sensor inside the AHU). Locate the temperature sensors at suitable places to obtain representative readings. The air handling unit is controlled in response to a computed mean value of the temperature sensors' readings, alternatively in response to signals from the temperature sensor that measures the lowest or highest value. As an alternative, a temperature reading can be transmitted to the air handling via communication from e.g. a main system. The same provision is available for room sensors for the Xzone function. External temperature sensors On/Off Off Extract air duct, temperature sensor Room sensor 1 On/Off Off Room sensor 2 On/Off Off Room sensor 3 On/Off Off Room sensor 4 On/Off Off Room sensor function Medium/min./Max. Medium Room temperature from On/Off Off communication Room temperature, for On/Off Off intermittent night heat only Room temperature, for On/Off Off summer night cooling only Outdoor air sensor 1 On/Off Off Outdoor air sensor 2 On/Off Off Outdoor air sensor 3 On/Off Off Outdoor air sensor 4 On/Off Off Outdoor air sensor function Medium/min./Max. Medium Outdoor temperature from communication On/Off Off We reserve the right to alter specifications without notice. 15

16 4.2.8 Regulation sequence Heating mode The mutual order for the heating mode regulation sequence can be selected as specified below. Functions that have not been selected have no effect on the relevant regulation sequence. Regulation sequence Heating mode 1/2/3/4/5/6* 1 * 1 = HX - Extra regulation sequence - ReCO 2 - HC - Reheating - Down regulation of the fan 2 = HX - Extra regulation sequence - Reheat - ReCO 2 - HC - Down regulation of fan 3 = HX - Reheating - ReCO 2 - HC - Extra regulation sequence - Down regulation of the fan 4 = HX - Reheating - Extra regulation sequence - ReCO 2 - HC - Down regulation of fan 5 = HX - ReCO 2 - HC - Reheating - Extra regulation sequence - Down regulation of the fan 6 = HX - ReCO 2 - HC - Extra regulation sequence - Reheating - Down regulation of the fan HX (heat exchanger): The temperature efficiency of the air handling unit s heat exchanger is modulated to provide max. heat recovery. Extra regulation sequence: Used in the heating mode for air heater (if required), air recirculation damper, etc. ReCO 2 : Recirculated air is variably mixed in up to the lowest permissible supply airflow. Assumes inclusion of the TCBR air recirculation section accessory. HC: HC in the heat pump function starts to produce heating. Reheating: Air heater for reheating provides heating capacity. Down regulation of fan: Down regulation can be selected for supply air only or supply air and extract air We reserve the right to alter specifications without notice.

17 Cooling mode The mutual order for the cooling mode regulation sequence can be selected as specified below. Functions that have not been selected have no effect on the relevant regulation sequence. Cooling mode 1/2/3/4/5/6* 1 * 1 = HX - Cooling boost - Extra regulation sequence - ReCO 2 - HC - Cool 2 = HX - Cooling Boost - Extra regulation sequence - Cooling - ReCO 2 - HC 3 = HX - Cooling Boost - Cooling - ReCO 2 - HC - Extra regulation sequence 4 = HX - Cooling Boost - Cooling - Extra regulation sequence - ReCO 2 - HC 5 = HX - ReCO 2 - HC - Cooling Boost - Cooling - Extra regulation sequence 6 = HX - ReCO 2 - HC - Cooling Boost - Extra regulation sequence - Cool HX (heat exchanger): The temperature efficiency of the air handling unit s heat exchanger is modulated to provide max. cool recovery. Cooling Boost (Economy): Involves increasing the supply air and extract air airflows to convey more cooling energy to the premises. The flow increase takes place between the current flow and the preset max. flow. Extra regulation sequence: Used in the cooling mode for air cooler (if required), etc. ReCO 2 : Recirculated air is variably mixed in up to the lowest permissible supply airflow. Assumes inclusion of the TCBR air recirculation section accessory. HC: HC in the chiller function starts to produce cooling. Cooling: Air cooler provides cooling capacity Min. exhaust air The min. exhaust air function can be used whenever the exhaust air temperature is not permitted to be below a predetermined value. Min. exhaust air The function controls the heat exchanger rotor speed (efficiency) in order to limit the exhaust air temperature to the required value. The function decelerates the heat exchanger rotor speed from the current level, until the exhaust air temperature reaches the preset minimum permissible. Exhaust air regulation requires a separatetblz-1-58-aa temperature sensor (accessory) fitted in the AHU's exhaust air. See separate installation instructions for the TBLZ-1-58-aa Internal temperature sensor. Min. exhaust air On/Off Off Min. exhaust air temperature ,0 C 5.0 C We reserve the right to alter specifications without notice. 17

18 Morning Boost The unit is utilised for heating the premises during a preset period prior to the switch-in time set on the timer. The function is used if an air recirculation section is installed. The AHU starts up prematurely and uses the same temperature regulation s. The airflow / air pressure is adjustable. When the function starts, the air recirculation damper opens and the supply air fan starts up. The extract air fan and the outdoor air damper remain closed. Morning Boost Morning Boost On/Off Off Start time (before the hour:min. 00:00 ordinary start time according to the timer) Supply air, set point 50% of max. supply air for AHU alt. 100 Pa The is the same as the AHU's min./max. for flow regulation and Pa for pressure regulation Heating Boost Heating boost (forced heating) means that the air handling unit, operating in the normal flow regulation mode, increases both the supply airflow and the extract airflow in order to carry more heat into the premises. The fans are permitted to operate in the between current flow modes or pressure (low speed, high speed) and the preset max speed. See Section The functions operates only when the AHU is operating in the extract air regulation and ORE regulation mode. If demand control or boost is selected in combination with heating boost, the flow is controlled by the function that transmits the highest output signal to the fans. A regulated ramp function switches in and gradually increases the airflow when there is a heating load, and the supply air temperature is 3 K (preset at factory) lower than the preset max. supply air temperature. Heating Boost Heating Boost On/Off Off Start limit 2-10 K 3 K 18 We reserve the right to alter specifications without notice.

19 Cooling Boost Cooling Boost (forced cooling) means that the supply air and extract air airflows are increased to convey more cool air to the premises. The fans are permitted to operate in the between current flow modes or pressure (low speed, high speed) and the preset max speed. See Section The function can be selected in five variants as follows: Cooling Boost Comfort The cooling outputs are activated if there is a cooling load. A regulated ramp function switches in and gradually increases the airflow when there is a cooling load, and the supply air temperature is 3 K (preset at factory) higher than the preset max. supply air temperature. Economy Cooling Boost Economy initially uses a higher airflow to cool the premises, before a start signal is transmitted to chillers. The function can also operate without the cooling function activated. In the event of a cooling load, the airflows are slowly increased up to preset maximum flow. When the flows are up to max and if a cooing load is still present, the output contacts for cooling are activated. The function requires that the outdoor air temperature is at least 2 K lower than the extract air temperature for it to be activated. The normal cooling function is activated if the temperature difference is too small. Sequence The Cooling Boost Sequence is used if a chiller is sized for a higher cooling flow than normal flow. If there is a cooling load, the flow is increased up to the preset max. flow and the cooling function is activated afterwards. The Cooling Boost Sequence is blocked if no cooling function has been selected. Comfort and economy The comfort variant and the economy variant can be combined. The function that has the highest signal (highest setpoint) applies. Economy and sequence The economy variant and the sequence variant can be combined. The function that has the highest signal (highest setpoint) applies. Sequence and comfort The sequence variant and the comfort variant can be combined. The function that has the highest signal (highest setpoint) applies. Comfort, economy and sequence The comfort variant, economy variant and the squence variant can be combined. The function that has the highest signal (highest setpoint) applies. Cooling Boost Comfort Economy Sequence Comfort and economy Economy and sequence/ Sequence and comfort/ Comfort, economy and sequence Start limit (Comfort) 2-10 K 3 K We reserve the right to alter specifications without notice. 19

20 Intermittent night heat The AHU is utilized for heating the premises when it is normally stopped by timer. The function requires that an external room sensor is wired to the control unit s communication BUS (optional COM 1-3) and that the AHU is fitted with an air heater for reheating the air. The function works best if the GOLD is equipped with an air recirculation section and shut-off dampers for the outdoor air and the exhaust air. When the function is activated, the air handling unit detects when the room temperature drops below the preset start temperature. The unit starts with preset flows and the supply air temperature set point. At the same time, the damper in the air recirculation section opens, if one is installed. If recirculation is in the Off position, the extract air fan is operating and the damper relay is open. The extract airflow can be decreased to the air handling unit s min. flow. Intermittent night heat does not affect any possible extra temperature zone (Xzone) which regulates according to its ordinary set point if Intermittent night heat is in operation. Conditions to be met for intermittent night-time heating to start: The AHU must be set to normal stop or extended normal stop. The room temperature must be lower than the preset start temperature. Conditions to be met so that Intermittent night heat will stop: The air handling unit is running at normal low/high speed or external/manual stop has been activated. The room temperature exceeds the preset stop temperature. The alarm with preset stop priority trips. (If needed, the air handling unit fans will continue to operate to cool the electric air heater although other conditions for stop have been met.) Intermittent night heat On/Off Off Air recirculation On/Off On Room temperature, start 5-25 C 16 C Room temperature, stop 5-25 C 18 C Supply air temperature, set 5-50 C 28 C point Supply airflow, set point 50% of max. supply air for AHU alt. 100 Pa Extract air flow, set point 50% of max. supply air for AHU alt. 100 Pa Intermittent night heat Intermittent night heat with air recirculation section: Recirculation in the On position: EXTRACT AIR SUPPLY AIR When conditions for start are met, outdoor air and exhaust air shut-off dampers remain closed. The damper in the air recirculation section opens. The extract air fan is idle. The supply air fan operates according to the preset supply airflow and the air heater for reheating operates according to the preset supply air temperature set point, until the conditions for stop are met. The is the same as the AHU's min./max. for flow regulation and Pa for pressure regulation 20 We reserve the right to alter specifications without notice.

21 Summer night cool The lower temperature at night is utilised to cool down the building structure. This reduces the cooling load during the first hours of the day. If a cooling unit is installed, it will not need to be operated, thus offering savings. If no cooling unit is installed, a certain cooling effect will still be achieved. When the function is activated, the AHU fans operate at high speed, with a supply air set point of 10 C (factory ) from the preset time until the conditions necessary for stop are satisfied. If the air handling unit is stopped for a period of time, test starts can be implemented in order to check whether all conditions, except heating demand, for summer night cooling have been met. If the conditions have been met, summer night cooling can be run. The start and stop dates of the period during which the air handling unit will be stopped can be preset. The set point for flow or pressure on the supply air and extract air can be set. This then means that any outdoor compensation does not affect summer night cooling. An extra temperature zone (Xzone), if required, obtains the same supply air set point if Summer night cool is in operation. Conditions that must be met for Summer night cool to start at the preset time: The time is between the preset start time and stop time. The outdoor air temperature shall be higher than the preset value. The extract air temperature shall be higher than the preset value. The extract air is at least 2 C warmer than the outdoor air. Heating load has not been required between and hours (heating load for dehumidification is not registered as heating load). The air handling unit shall be running at low speed or be in the normal stop operating mode. Intermittent night heat has not been active during the day. Conditions that must be met for Summer night cool to stop: The time is not between the preset start time and stop time. The extract air temperature drops below the preset value. The outdoor temperature drops below the preset value. The extract air is less than 1 C warmer than the outdoor air. The air handling unit is running at normal high speed or external/manual stop has been activated. The function starts once per preset time period. Summer night cool Summer night cool On/Off Off Start time 00:00-00:00 23:00 Stop time 00:00-00:00 06:00 Outdoor air, start C 10 C Extract air, start C 22 C Extract air, stop C 16 C Supply air, set point 0-20 C 10 C Start, period with stopped air handling unit Stop, period with stopped air (month day) (month day) handling unit Supply air, set point Unit s minimum flow - maximum flow 2) Supply air, set point Pa 100 Pa Extract air set point Unit s minimum flow - maximum flow 2) Extract air set point Pa 100 Pa 50% of maximum air flow for air handling unit 50% of maximum air flow for air handling unit The condition for heating load can be deselected during the preset period. 2) See section We reserve the right to alter specifications without notice. 21

22 Down regulation (airflow/pressure) Down regulation of the supply air flow is the last step in the regulation sequence for heating. The supply air fan or both the supply air and extract air fan can be selected. The extract air fan only cannot be selected. See also Section Down regulation can take place to max. of 50% of the preset value, however not lower than the min. flow or 20 Pa. Down regulation Down regulation /Supply air/supply air and extract air 22 We reserve the right to alter specifications without notice.

23 4.3 Time and schedule The built-in timer enables you to control the AHU's operating mode/time. Certain other oversteering functions such as external timer, communication, etc. affect the preset operating modes. There are five different operating modes: Total stop = The AHU is completely stopped, no internal automatic functions or external control commands can start the AHU. Normal Stop = The AHU has stopped, however all the internal and external automatic functions oversteer the stop. Extended Normal Stop = The AHU has stopped, however all the internal and external automatic functions, with exception of Summer night cool, oversteer the stop. Low speed = The AHU is running at the preset low speed. High speed = The AHU is running at the preset high speed Time and date The current date and time can be set and adjusted if needed. The timer automatically takes leap years into consideration. The relevant region and city can be selected, summer time/winter time changover will then be managed automatically. Time source can be set to manual or via SNTP (requires connection to network) and BACnet. The time format and date format can be set Schedule s The relevant operating mode can be read under Schedule s. Here you can also set a preselected operating mode, in which the air handling unit always operates during non-programmed time, under Day schedule and Exceptions schedule. This (start and stop date not activated) is used most often and covers the majority of needs. When the start and stop date is activated, this means that during the preset period (date) preset time applies during the day schedule and the exceptions schedule, and at all other times the AHU runs in the preselected operating mode. Time and schedule Time and date Schedule s s Preselected operating Total stop/low Low speed mode speed/high speed/ Normal Stop/ Extended Normal Stop Start date Active/ Start date Year/Month/Day Stop date Active/ Stop date Year/Month/Day We reserve the right to alter specifications without notice. 23

24 4.3.3 Day schedule Times and days can be set when the air handling unit is to run in the high speed mode, low speed mode or be switched off. Day schedule For each day (Monday - Sunday), six different events can be set to occur at a given point in time. Here, it is also possible to set six different events for two exceptions under Ex1 and Ex2. The provisions for these exceptions can then be set under Exceptions schedule, Calendar 1 and Calendar 2. Note that the preset event will not be carried over to the next 24-hour period. If no event is set from hours of the next 24-hour period, the AHU will operate in the preselected operating mode preset under Schedule s. s Day Mon/Tues/Wed/Thurs/Fri/Sat/Sun/Ex1/ Ex2 Time 00:00-23:59 00:00 Action /Total stop/low speed/high speed/normal Stop/ Extended Normal Stop/Ignore Exceptions schedule Possible exceptions (Ex1 and Ex2), previously preset in the day schedule can be set in the Exceptions schedule. Here you can determine on which date or weekday the relevant exception shall apply. If you select Calendar 1 or Calendar 2, which is the most often the case, these can be set according to particulars in the next section. Exceptions schedule Exceptions schedule 1/2 Exceptions method Date Start date Start weekday Date Start date Start weekday Stop date /Date/Date /Weekday/ Calendar 1/ Calendar 2 Year/Month/Day Each day/ Monday/Tuesday/ Wednesday/ Thursday/Friday/ Saturday/Sunday Year/Month/Day Each day/ Monday/Tuesday/ Wednesday/ Thursday/Friday/ Saturday/Sunday Year/Month/Day s Each day Each day Stop weekday Weekday Start date Start weekday Calender 1 Calender 2 Each day/ Monday/Tuesday/ Wednesday/ Thursday/Friday/ Saturday/Sunday Mon 1-12/Odd/ Even/Each Day 1-7/8-14/15-21/22-28/29-31/ Latest 7 days/each day Each day/ Monday/Tuesday/ Wednesday/ Thursday/Friday/ saturday/sunday See next chapter See next chapter Each day Each day 24 We reserve the right to alter specifications without notice.

25 4.3.5 Calendar 1 and 2 The specific days when Exceptions schedule 1 or 2 shall apply can be set in Calendars 1 and 2. On condition that Calendar 1 or 2 is selected, see previous section. In other cases, these s will have no effect. There is a total of ten possible s under each calendar and various functions can be selected for each. s (For Calendar 1 and Calendar 2 respectively): Function 1-10 Date Start date Start weekday Date Start date Stop date Weekday Start date Start weekday /Date/Date / Weekday Year/Month/Day Each day/monday/tuesday/ Wednesday/Thursday/Friday/ Saturday/Sunday Year/Month/Day Year/Month/Day Month 1-12/Odd/Even/Each Day 1-7/8-14/15-21/22-28/29-31/Latest 7 days/each day Each day/monday/tuesday/ Wednesday/Thursday/Friday/ Saturday/Sunday Each day Each day Prolonged operation The control unit inputs for external low speed (terminals 14-15) and external high speed (terminals 16-17) respectively, can be supplemented with Prolonged operation. They can be used for overtime running activated by a pushbutton, for example. The required time in hours and minutes can be set as follows. Calendar 1 Calendar 2 Prolonged operation Ext. low speedt 0:00-23:59 00:00 Ext. high speed 0:00-23:59 (hrs.:min.) 00:00 (hrs.:min.) We reserve the right to alter specifications without notice. 25

26 4.4 Energy monitoring Readings of the power consumed by fans and other AHU components can be viewed here. SFP readings for the AHU fans and the efficiency on heat transfer of the rotary heat exchanger can also be viewed. Calculated capacities for re-heating can cooling can also be read. Accumulated energy consumption can be reset to zero. 4.5 Filters Status The current filter status and the current alarm limit can be viewed here. Used for performance checks. Calibration The filters should be calibrated when the fans are started up for the first time and when the duct system, air terminals and commissioning plates, if required, have been installed and commissioned. After that every time filters are replaced. See also Section 3. Energy monitoring Filters Pre-filter/AHU filter (GOLD SD)/End filter Filter monitoring must be activated for the filter (in addition to the internal filter in the GOLD RX/PX/CX) to be monitored. Pre-filter /Supply air/extract air/ Supply air and extract air AHU filters /Supply air/extract air/ Supply air and extract air End filter On/Off Off Alarm limits Alarm limit for installed filters can be changed. : Installed filters Pa 100 Pa 4.6 Software The current program versions for the IQlogic control unit, IQnavigator hand-held terminal and the component units on the communications bus can be viewed and updated from the SD circuit card. 4.7 Language The language desired can be set here. The appropriate language is normally selected the first time the AHU is started up. However, the language can be changed at any time. Software Language Language Available languages are displayed English 26 We reserve the right to alter specifications without notice.

27 4.8 Alarm s Fire alarms Internal fire alarm The air handling unit s internal temperature sensors serve as fire protection thermostats. An alarm is initiated if the supply air temperature sensor registers more than 70 C or when the extract air temperature sensor registers more than 45 C. Alarm limits are possible to set. If an external Extract air/room temperature sensor is connected and activated, this works parallel with the extract air temperature sensor of the AHU. Alarm s Fire alarms External fire alarm 1 and 2 External fire alarm 1 (Terminals 6-7) and external fire alarm 2 (Terminals 8-9) are used for external fire-control equipment. Alarm reset The re of internal fire alarms as well as the external fire alarms 1 and 2 can be individually selected to manual or automatic. After cool The After cool function for electric air heaters, COOL DX and/ or SMART Link DX can be individually activated, for internal fire alarms as well as external fire alarms 1 and 2. Fan operation at fire alarm The fans of the air handling unit can be used for evacuating smoke, etc. It is possible to individually select the type of fan operation for each separate fire alarm. If the AHU is idle, the fans selected start up (10-100%), irrespective of whether stop (all types) is activated. The AHU's damper relay is energized and the AHU's operation relay is de-energized. The damper that should be open in event of fire, shall be connected to the damper relay (control unit terminals 28-30). The damper that should be closed in event of fire, shall be connected to the operation relay (terminals of the control unit, potential-free contact). Priority The mutual priority of the internal and the external fire alarms can be set. If automatic is selected, this means that the first input to be activated is given priority. Fire bypass in flow diagram The fire bypass is shown on the hand-held terminal s flow diagram when the function is activated. Fan operation for extract air must be active for at least one of the fire alarms. Dampers switch to fire bypass if any of the fire alarms are active and the extract air fan is operational. s Internal fire alarm On/Off Off Supply air temperature, C 70 C alarm limit Extract air temperature, C 45 C alarm limit Internal fire alarm reset Manual/Auto Manual Internal fire alarm after Active/ cool External fire alarm 1/2, Manual/Auto Manual re External fire alarm 1/2, Active/ after cool Fan operation on an /Supply air/ internal fire alarm Extract air/supply air and extract air Supply air fan on an % 100% internal fire alarm Extract air fan on an inter % 100% nal fire alarm Fan operation on external fire alarm 1/2 Supply air fan on external fire alarm 1/2 Extract air fan on external fire alarm 1/2 Order of priority /Supply air/ Extract air/supply air and extract air % 100% % 100% External fire alarm 1/External fire alarm 2/ Internal fire alarm/ Automatic Fire bypass in flow diagram On/Off Off External fire alarm 1 We reserve the right to alter specifications without notice. 27

28 4.8.2 External alarms External alarms can be used for external functions (control unit terminals and 12-13). Typical uses: Motor protection for the circulation pump in the heating or cooling circuit. Service alarm actuated by smoke detectors. Set the following: Manual or automatic alarm reset, post-cooling for electric air heater and whether the alarm shall be activated on a closed or open circuit. The alarm can be time delayed. External alarms External alarm 1 reset Manual/Auto Manual External alarm 1 after cool /Active Active External alarm 1 input Closed circuit/ Open circuit Closed circuit External alarm sec. 10 sec. delay time External alarm 2 reset Manual/Auto Manual External alarm 2 after cool /Active Active External alarm 2 input Closed circuit/ Open circuit Closed circuit External alarm 2 delay time sec. 10 sec Temperature protection In the GOLD PX and CX units, the sensor in the inlet of the supply air fan can be used as temperature protection. Alarm priority and whether the AHU shall stop or not in event of an alarm can be set under Alarm priority, se Section For the GOLD RX unit, it is possible to use a separate sensor and its wiring is routed to the control unit. Select sensor input 4 for supply air = right and select sensor input 3 for supply air = left. The alarm limit and alarm delay can be set for the sensor. Temperature protection s Temperature protection On/Off Off Alarm delay sec. 30 sec. Alarm limit C 7 C 28 We reserve the right to alter specifications without notice.

29 4.8.4 Temperature alarm limits Changes in the factory-preset alarm limits should only be made if you have special reasons for doing so and you should be aware of the consequences. Temperature alarm limits Pre-heating below set point You can preset how much the temperature downstream of the pre-heater should be permitted to be below the temperature set point before an alarm is initiated. Supply air below/above set point You can preset how much the supply air temperature shall be permitted to be below or above the supply air temperature set point before an alarm is initiated. The alarm for supply air above the set point is normally blocked. Used in the cases in which cooling is installed. Extract air below alarm limit Alarm limit for extract air temperature can be set. When the extract air temperature is below the alarm limit, alarm 12:6 is generated. Outdoor temperature, stop limit On tripped heat exchanger alarms, alarm numbers: 15:1-15:4, 16;1-16:4, 17:1, 17:4-17:9 (See the Manual for alarms and information messages), the following applies: if the outdoor air temperature is above this stop limit, an alarm only will be initiated and if it is below the stop limit, the AHU will stop and an alarm will be initiated. Pre-heat below set point 2-15 K 5.0 K Supply air below set point 2-15 K 5.0 K Supply air above set point 2-15 K 7.0 K Extract air below alarm limit C 12,0 C Outdoor temperature limit stop C 5.0 C Service period The air handling unit's service period can be set here. The remaining time to alarm can be read. An alarm will be initiated after the time interval has expired. If you reset the alarm in the alarm log, the alarm will trip again after 7 days. Following completed service, the alarm must always be reset in this menu and this will launch a new service interval. Service period Service period 0 99 months 12 months We reserve the right to alter specifications without notice. 29

30 4.8.6 Alarm priority Changes in alarm priority should only be made if you have special reasons for doing so and you should be aware of the consequences. The priority of certain alarms cannot be changed. Alarm priority Alarm number 1:1-60:10 Active On/Off Priority Info*/A/B Air handling unit stop On/Off * Alarms are indicated as a flashing red LED on the hand-held terminal, no group alarm is forwarded We reserve the right to alter specifications without notice.

31 4.9 Log An SD card must be fitted into the AHU's control card for the log function to work (2 GB SD cards are installed from the factory, 8 GB SD cards can be ordered as accessories) Continuous log The continuous log can be activated here. The login interval is one minute (1440 logins per 24-hour period). One login file is created for each 24-hour period. Log Continuous log s Log file period On/Off On Log sender The log function has a log sender function which can the log to an optional address and/or FTP address. Log sender Log sender active On/Off Off Live mode /FTP/ and FTP Other s can be entered in the AHU's web page. We reserve the right to alter specifications without notice. 31

32 4.10 Air handling unit s Set the type of air handling unit here. The type of air handling unit is normally preset for the unit supplied; except the GOLD SD extract air unit which must be set here. N.B.! Do not change the air handling unit to a type that differs from the one supplied. If you do so, the air handling unit will not operate satisfactorily. The air handling unit can be given a specific name (e.g. the unit's serial number). Naming in the hand-held terminal can only be done with digits, however on the web page the naming can also be done with alphabetical characters. The given name is then shown in all the images in the hand-held terminal and web page. The type of AHU, size of the supply air and extract air fan respectively can be viewed. GOLD RX/PX/CX The AHU s fan position 1 (left-hand fan seen from the inspection side, see illustrations) can be read and preset. N.B.! This changes the function of the fans from supply air to extract air and vice versa. GOLD RX size / GOLD RX Top can be changed at the site. The other variants must not be changed from the factory. For changes in fan position, check the filter class in the supply and extract air. If the filter classes for the supply and extract air are not equal, change the positions of the filters. The fan position in the flow chart can be read and should be set according to the AHU's actual configuration. GOLD SD The fan position, upper or lower level, can be read and should be set according to the AHU s actual configuration. Air handling unit s GOLD RX Fan arment 1 Fan pos. 1 set as extract air (right-hand inspection side) Fan arment 2 Fan pos. 1 set as supply air (left-hand inspection side) Type of air handling unit GOLD RX/PX/CX Name Fan position 1 Flow chart, supply air fan position GOLD SD Name Flowchart fan position GOLD RX/GOLD PX/GOLD CX/ GOLD SD Supply air/gold SD Extract air/ GOLD SD Supply air+cx/ GOLD SD Supply air+extract air/ GOLD SD Supply air+extract air+cx Optional Extract air/ Supply air Upper level/ Lower level Optional Upper level/ Lower level Type of air handling unit supplied, except the GOLD SD extract air handling unit Extract air Lower level Lower level Fan pos. 1 set as extract air (right-hand inspection side) GOLD RX Top Fan pos. 1 set as supply air (left-hand inspection side) Fan pos. 1 set as supply air (left-hand inspection side) Fan pos. 1 set as extract air (right-hand inspection side) Outdoor air Supply air Extract air Exhaust air 32 We reserve the right to alter specifications without notice.

33 Fan status The fan control speed can be viewed in percent of max. speed here Operation time In operation times (in days) can if applicable be viewed for fan controls, heat exchanger/cooling recovery, preheating, extra heating regulation sequence, Xzone heating, AHU reheating, ReCO 2 heating, extra cooling regulation sequence, Xzone cooling, AHU cooling, ReCO 2 cooling, AYC heating water and AYC cooling water VOC/CO 2 sensor You can select here the operating mode for the VOC sensor and the CO 2 unit. The VOC level can be read. The VOC sensor position in the flow chart can be selected if only monitoring has been selected. VOC sensor mode /Monitoring only/monitor- ing and regulation CO 2 unit %/ppm % Flow chart, VOC sensor position Supply air/ Extract air Supply air set values: 0% = 500 ppm, 50% = 1000 ppm, 100% = 1500 ppm Fan status Operation time VOC/CO 2 sensor Automatic functions Start up sequence The air handling unit has a start up sequence with a factorypreset time delay between each step as follows: 1. The damper relay is energized and opens the shut-off damper (if installed). The heat exchanger is controlled to max. heat recovery (not the GOLD SD without heat exchanger). The valve for reheating opens to 40% (if installed) Time delay: 30 seconds. 2. The extract air fan starts in the current operating mode (not for ventilation systems with GOLD SD supply air handling unit only) Time delay: 60 seconds. 3. The supply air fan starts (not for ventilation systems with GOLD SD extract air handling unit only) Time delay: 30 seconds. 4. The reheating function is ramped up or down depending on the heating load. Ramp time: 180 seconds. After that the heat exchanger is ramped up or down depending on the heating load. Ramp time: 180 seconds. The entire start up sequence can be followed in the dashboard image. The start up sequence prevents the extract air fan from starting up if the shut-off damper is closed. By first starting up the extract air fan and the heat exchanger, you can avoid chilling the premises with supply air on a start up under cold weather conditions. Zero point calibration The pressure sensor of the AHU is automatically calibrated. The calibration process takes about 70 seconds after the AHU has stopped (a notification is shown if the AHU has not stopped). The zero point calibration text is displayed in the hand-held terminal. The fans cannot start while calibration is in progress. We reserve the right to alter specifications without notice. 33

34 4.11 Heat Status All the relevant values can be read here. Used for performance checks Pre-heat By preheating the outdoor air, it is possible to prevent moisture precipitation in the AHU's outdoor air filter, to reduce the risk of frosting in the heat exchanger and to eliminate the risk that pressure sensors and motor control systems are operating in too low ambient temperature. Scope for Outdoor air temperature related preheat is available. See also the Pre-heat function guide for more detailed information. Heat Status Pre-heat Pre-heat On/Off Off Pre-heat set point C 5 C Outdoor air temperature On/Off Off related Difference, 0 25 K 5 K outdoor air temperature Preheat, min. limit C -10 C Periodic operation of pump On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Alarm input, function /Alarm on open contact/ Alarm on closed contact/contactor function 34 We reserve the right to alter specifications without notice.

35 Extra regulation sequences 1 and 2 Used for extra regulation functions controlled by a 0-10 V (10-0 V) signal with ordinary temperature regulation sequence. The function can be used for utilising existing heating or cooling sources, such as from a chiller. The function can also be used for an extra air heater or air cooler. The function can also be used to control a combi coil (heating and cooling), see separate function guide for combi coils. It can also be used for controlling dampers for recirculation, if required. In these cases, an inverted 10-0 V output is used. Recirculation control is used for the TBBD mixing section (GOLD SD only) The 10-0 V inverted output should be in the On position. The maximum output signal can be limited from 100% down to 0 %. The output signal of the extra regulation sequence is controlled from the TBIQ-3-2 IQlogic + module accessory, see separate installation instructions. When the SMART Link DX function is selected, the extra regulation sequence is automatically activated. The extra regulation sequence cannot then be used for any other functionality. An IQlogic+ module is not required (alarm for missing module is blocked). The extra regulation sequence makes it possible to control two air heaters at the same time in the following combinations: water - electricity, water - water, electricity - electricity (Season heat, see also Section ). The air heater for hot water is available without or without frost guard function. When the output of the first air heater is not sufficient, the second is automatically brought into the sequence. A start-up sequence, frost guard function, pump control, postcooling for electric air heater and other functionality are available. For the start-up sequence, frost guard function, periodic operation and post-cooling, the same s are used as for regular reheating. Extra regulation sequence 1/2 Extra regulation sequence /Heat/Cool/ 1/2 Heat and cool Inverted output 10-0V On/Off Off Recirculation control On/Off Off Max. output signal 0-100% 100% Periodic operation of pump On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Pump alarm /Alarm on open contact/ Alarm on closed contact/contactor function Combi coil, function On/Off Off Combi coil, temperature On/Off Off protection, function Combi coil, external signal, /Digital function input/bms Combi coil, external signal, Heating/Cooling Heating indication Combi coil, digital output, On/Off Off function Combi coil, digital output, indication Heating/Cooling Heating We reserve the right to alter specifications without notice. 35

36 Reheat The air heater is equipped with a quick-fit connector for connection to the AHU's control unit which automatically senses the type of air heater in use. Reheat Air heater for hot water When there is a reheating load, and the function Periodic operation of pump or of pump+valve is selected, the relay output is activated (control unit terminals 20-2 and this starts the circulation pump of the air heater. If the outdoor temperature is low (colder than +12 C), the pump output contact is continuously activated. During other times, the pump output contact is activated 3 min./day (factory ) for periodic operation the circulation pump. Alarm inputs can be activated as alarm on open contact, alarm on closed contact or contactor function. Requires the accessory TBIQ-3-2, see the separate installation instructions. Air heater for hot water Periodic operation of pump On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Alarm input, function /Alarm on open contact/ Alarm on closed contact/contactor function Not active Electric air heater When there is a reheating load, the relay output is activated (control unit terminals The relay output can be used for indicating or blocking the external function Xzone The Xzone temperature control function is designed for controlling one extra temperature zone via the ventilation system. Xzone can be used for all types of air handling units, and both reheating and cooling can be controlled in the extra zone. See also the Xzone function guide for more detailed information. Xzone Xzone On/Off Off Air heater for hot water Periodic operation of pump On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Alarm input, function /Alarm on open contact/ Alarm on closed contact/contactor function 36 We reserve the right to alter specifications without notice.

37 Electric air heater If the electric air heater has been in operation, the air heater is post-cooled for about 3 minutes (factory ) when stop has been activated. The text After cool appears in the hand-held terminal. Electric air heater After cool 1-25 min 3 min Season Heat The Season Heat function involves that the extra regulation sequence 1 functions is activated. See Section When both the standard function for reheating and the extra heating sequence are activated, it is possible to alternate between these via a digital input or communication. Example: Hot water is only available in the winter. In the summer, any reheating load is backed up by an electric air heater. Changeover can be done manually or via external thermostat, external clock function or the like. Season Heat /Extra reg. seq. 1 closed contact/ Extra reg. seq. 1 open contact/extra reg. seq. 1 Manual Extra reg. seq. enabled (manual only) On/Off 2) Off Season Heat Extra regulation sequence 1 closed contact = When the contact is closed, only the standard reheating function is active. When the contact is opened a changeover to extra heating regulation sequence occurs. Extra regulation sequence 1 open contact = When the contact is open, only the standard reheating function is active. When the contact is closed, a changeover to extra heating regulation sequence occurs. Extra regulation sequence 1 Manual = Changeover is done in the hand-held terminal or on the AHU's web page. 2) Extra regulation sequence in Off position involves that the standard function for reheating is active and in the On positin a changeover to extra regulation sequence occurs Automatic functions Frost guard function, air heater for water The frost guard function is always active if the connected air heater for hot water has been supplied by Swegon. The function activates a heating device that keeps the temperature in the coil at 13 C while the air handling unit is operating and 25 C in the coil when the unit is stopped. An alarm is initiated and stops the AHU if the temperature sensor senses a temperature below 7 C. Capacity reduction of the electric air heater Only in combination with Swegon's electric air heater. A min. permissible air velocity of 2.0 m/s is required for preventing the electric heating elements from becoming overheated when they are generating full heating output. If the air handling unit supply airflow drops below the value that corresponds to an air velocity of 2.0 m/s across the heat exchanger, the heating output of the air heater will be automatically reduced. We reserve the right to alter specifications without notice. 37

38 4.12 Cool Status All the relevant values can be read here. Used for performance checks Extra regulation sequences 1 and 2 Used for extra regulation functions controlled by a 0-10 V (10-0 V) signal with ordinary temperature regulation sequence. The function can be used for utilizing existing heating or cooling sources, such as from a chiller. The function can also be used for an extra air heater or air cooler. The function can also be used to control a combi coil (heating and cooling), see separate function guide for combi coils. It can also be used for controlling dampers for recirculation, if required. In these cases, an inverted 10-0 V output is used. Recirculation control is used for the TBBD mixing section (GOLD SD only) The 10-0 V inverted output should be in the On position. The maximum output signal can be limited from 100% down to 0 %. The output signal of the extra regulation sequence is controlled from the TBIQ-3-2 IQlogic + module accessory, see separate installation instructions. When the SMART Link DX function is selected, the extra regulation sequence is automatically activated. The extra regulation sequence cannot then be used for any other functionality. An IQlogic+ module is not required (alarm for missing module is blocked). Cool Status Extra regulation sequence 1/2 Extra regulation sequence /Heat/Cool/ 1/2 Heat and cool Output inverse 10-0V On/Off Off Recirculation control On/Off Off Max. output signal 0-100% 100% Periodic operation of pump On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Pump alarm /Alarm on open contact/ Alarm on closed contact/contactor function Combi coil, function On/Off Off Combi coil, temperature On/Off Off protection, function Combi coil, external signal, /Digital function input/bms Combi coil, external signal, Heating/Cooling Heating indication Combi coil, digital output, On/Off Off function Combi coil, digital output, indication Heating/Cooling Heating 38 We reserve the right to alter specifications without notice.

39 Cool The valve actuator of the air cooler for water is equipped with a quick-fit connector for connection to the AHU's control unit which automatically activates the cooling function. Cool 1-step Used if cooling in one step is connected. The cooling controller of the AHU regulates the cooling output according to the cooling load, %. The cooling relay is energised when the cooling load exceeds 5 % and is de-energised when the cooling load is below 2 %. 2-step Used when cooling in 2 steps is connected. The cooling controller of the AHU regulates the cooling output according to the cooling load, %. Cooling relay 1 is energised when the cooling load exceeds 5 % and is de-energised when the cooling load is less than 2 %. Cooling relay 2 is energised when the cooling load exceeds 55 % and is de-energised when the cooling load is less than 50 %. 3-step, binary Used when cooling with two inputs controlled with three binary steps is connected. The cooling controller of the AHU regulates the cooling output according to the cooling load, %. On an increasing cooling load: Cooling relay 1 is energised when the cooling load is above 5 % and is de-energised when the cooling load is between %. Cooling relay 2 is energised when the cooling load is above 40 %. Cooling relay 1 is energised again (together with cooling relay 2) when the cooling load is above 70%. On a decreasing cooling load: Cooling relay 1 is deenergised when cooling load is below 60 %, it is energised again when cooling load is below 30 % and is deenergised again when cooling load is below 2 %. Cooling relay 2 is de-energised when cooling load is below 30 %. Alarm inputs can be activated as alarm on open contact, alarm on closed contact or contactor function. Requires the accessory TBIQ-3-2, see the separate installation instructions. DX air cooler Cooling /1 step/2 steps/3 steps, binary Air cooler for water Periodic operation of pump 1 On/Off On Periodic operation of pump 2 On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Alarm input 1/2, function /Alarm on open contact/alarm on closed contact/ Contactor function Not active We reserve the right to alter specifications without notice. 39

40 Xzone The Xzone temperature control function is designed for controlling one extra temperature zone via the ventilation system. Xzone can be used for all types of air handling units, and both reheating and cooling can be controlled in the extra zone. See also the Xzone function guide for more detailed information. Xzone DX air cooler Cooling /1 step/2 steps/3 steps, binary Air cooler for water Periodic operation of pump 1 On/Off On Periodic operation of pump 2 On/Off On Periodic operation of valve On/Off On Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Alarm input 1, function Alarm input 2, function /Alarm on open contact/ Alarm on closed contact/contactor function /Alarm on open contact/ Alarm on closed contact/contactor function COOL DX COOL DX - Economy (without heat exchanger) Used when the COOL DX chiller is connected. Both cooling relays of the air handling unit operate in parallel with the corresponding relay on the IQlogic + module in the COOL DX chiller. COOL DX - Comfort Used when the COOL DX chiller is connected. The heat exchanger in the AHU operates in sequence with the cooling unit to even out the supply air temperature. COOL DX Top Used when the COOL DX Top chiller is connected. Both cooling relays of the air handling unit operate in parallel with the corresponding relay on the IQlogic + module in the COOL DX chiller. COOL DX COOL DX /Economy/ Comfort/COOL DX Top 40 We reserve the right to alter specifications without notice.

41 Delay time Stop drying delay is the delay time between switching off and stop of the air handling unit. Used to dry out any moisture if cooling has been operational. Restart time is computed from when the compressor starts until it is permitted to start again. Step switch time is the time delay between two steps. Stop/start time is computed from when the compressor stops until it is permitted to start again. Delay time Stop, drying delay On/Off Off Stop, drying delay time 1-60 min. 3 min. Restart time 0-20 min. 5 min. Step switch time 0-15 min. 5 min. Stop/start time 0-15 min. 5 min Outdoor air limits Provision is available for an outdoor temperature-related blocking function in 3 steps. If the outdoor temperature is below each step limit, the function of the cooling relays will be blocked. The function is used for preventing the relevant compressors from being switched on and off too many times. Outdoor air limits Step C 15 C Step C 18 C Step C 20 C We reserve the right to alter specifications without notice. 41

42 Airflow, limits Cooling, 0-10 V: The cooling function is blocked if the supply or extract airflows are lower than the preset limit. If the airflow limit function is not of immediate interest, both flow limits are set to 0. Air flow limits Cooling, On/Off: The current airflow must exceed the preset airflow as a condition for the respective cooling step to be put into operation. s Cooling, 0-10 V Supply air, 0-10 V 0 - Max. flow 25% of max. airflow for air handling unit Extract air, 0-10 V 0 - Max. flow 25% of max. airflow for air handling unit Cooling, On/Off Supply air, On/Off, step Max. flow 25% of max. airflow for air handling unit Extract air, On/Off, step Max. flow 25% of max. airflow for air handling unit Supply air, On/Off, step Max. flow 50% of max. airflow for air handling unit Extract air, On/Off, step Max. flow 50% of max. airflow for air handling unit Supply air, On/Off, 0 - Max. flow 75% of max. airflow step 3 Extract air, On/Off, step 3 for air handling unit 0 - Max. flow 75% of max. airflow for air handling unit 42 We reserve the right to alter specifications without notice.

43 4.13 Heat/Cool recovery Status All the relevant values can be read here. Used for performance checks. See below for designations of each PX sectional damper (counterflow heat exchanger): Sectional damper 1 (farthest out) = 1A Bypass damper (centre) = 2A Sectional damper 2 (farthest in) = 3A Heat/Cool recovery Status Carry over control If the fans are generating low airflows, the rotary heat exchanger is decelerated to an appropriate speed to ensure a correct purging airflow through the heat exchanger. Carry over control Carry over control On/Off Off Efficiency measurement The efficiency measurement of heat exchangers for RX/PX/CX can be enabled here. The function requires two extra sensors, TBLZ (extract air) and TBLZ (exhaust air) which measure temperature and humidity. See the separate installation instructions. Measured values are specified under the humidity function. Efficiency measurement Efficiency measurement On/Off Off We reserve the right to alter specifications without notice. 43

44 Defrost In environments where the extract air can occasionally be humid, the defrosting function can be activated to protect the heat exchanger from frosting. The function continuously monitors the condition of the heat exchanger rotor to prevent it from becoming clogged due to condensate that has frozen inside the exchanger. The function requires a separate pressure sensor (preset for heat exchanger defrosting) wired to the control unit inputs for external BUS communication and connected to the AHU pressure measurement tappings. See special installation instruction for the TBLZ-1-23-aa pressure sensor. The pressure drop across the rotor must then be calibrated to establish a reference pressure drop for monitoring purposes. Calibration is put into effect by Calibration to the On position. When the defrosting function is activated the pressure drop across the heat exchanger is continuously measured and the reading is compared with the calibration reading. If the pressure drop exceeds the preset limit value, a defrosting sequence is implemented in which the rotor speed is gradually ramped down (ramp time max. 4 minutes). The lowest permissible speed of the rotor is 0.5 rpm. During the defrosting process, the warm extract air thaws any possible ice that has formed on surfaces. If defrosting reduces the speed to the min. speed 0.5 rpm for more than 2.5 h an alarm is generated. Note that the heat exchanger performs less efficiently while defrosting is in progress and that the supply air temperature will also drop downstream of the heat exchanger. Defrost Connection principle for the defrosting function with separate pressure sensor. Extract air Defrost On/Off Off Defrost limit value Pa 50 Pa Calibration On/Off Off 44 We reserve the right to alter specifications without notice.

45 Calibration/Optimization (GOLD PX) Defrosting, Standard Calibration should be carried out when the air handling unit is started up and when necessary. When calibration is in progress, the air handling unit s limit values for alarms and defrosting are calculated. Defrosting, RECOfrost Calibration should be carried out when the air handling unit is started up and when necessary. When calibration is in progress, the air handling unit s limit values for alarms and defrosting are calculated. Bypass optimisation should be carried out when the air handling unit is started up and when necessary. When bypass optimization is in progress, the damper positions of the bypass are optimized. Calibration and bypass optimization can be activated to occur at the same time or individually. If they are activated individually, whichever one is activated first is of no importance. s Calibration On/Off Off Bypass optimization (RECOfrost only) On/Off Off Automatic functions GOLD RX (rotary heat exchanger) Purging function Purging is an automatic function that prevents the rotary heat exchanger from standing still in the same position for a longer period when no heating is necessary. Purging operation is activated when the AHU is operating but the heat exchanger rotor is not rotating. The heat exchanger rotor then rotates for 10 seconds every 10 minutes to purge its surfaces clean of impurities. Calculation of the efficiency The efficiency is calculated and displayed (0 100%). Calculation of recovered energy Recovered sensible energy is calculated and the values are displayed (instantaneous and accumulated). Cooling recovery Cooling recovery is an automatic function that helps the air handling unit on a cooling load and high outdoor air temperature to utilize the relative "cooling energy" that can be indoors. The heat exchanger rotates at max. speed and in this way recovers the relative cooling energy or chilliness in the extract air. The conditions for this function to be activated are that there is a cooling demand and that the outdoor temperature is 1 C higher than the extract air. The function stops when the cooling load ceases to exist or when the outdoor temperature is the same as that of the extract air. Overtime heat exchanger operation If the AHU stops, the heat exchanger automatically continues to recover heat for about 1 minute. It takes a little time for the fans to stop rotating after a stop has been ordered and this prevents the supply air from chilling the premises. Calibration/Optimization GOLD CX/SD (coil heat exchanger) Pump control, coil heat exchanger The pump of the pipework package starts when heat recovery is needed. If heat recovery is not needed for more than 24 hours, the pump is exercised once a day. Anti-frost protection In cold weather, and if the extract air is humid, there is risk of frosting in the coil heat exchanger. The GOLD CX/SD is equipped with anti-frosting protection. The temperature of the liquid circulated to the extract air coil and the humidity in the extract air are measured. Taking the humidity into consideration, the control system calculates the lowest permissible temperature without risk of frosting inside the coil. The valve in the pipework package is then regulated to prevent the circulated liquid from dropping below this temperature. GOLD PX (plate heat exchanger) In cold weather, and when the extract air is humid, there is risk of frosting in the plate heat exchanger. The GOLD PX is therefore equipped with anti-frost protection. Anti-frost protection, standard The pressure drop across the heat exchanger and the outdoor air temperature are measured. With consideration given to the pressure drop across the heat exchanger and the outdoor air temperature, the control system regulates dampers for bypass and heat exchanger (interlinked) in order to prevent the formation of frost. RECOfrost anti-frost protection The pressure drop across the heat exchanger, extract air temperature, moisture content in the extract air and outdoor air temperature are measured. With consideration given to the pressure drop across the heat exchanger, the extract air temperature, the moisture content in the extract air and the outdoor air temperature, the control system individually regulates dampers for bypass and the heat exchanger for section-by-section defrosting without the formation of frost. We reserve the right to alter specifications without notice. 45

46 4.14 HC, reversible heat pump/chiller The HC function is designed to control a reversible heat pump/ chiller in the unit GOLD RX/HC. For further information, see the GOLD RX/HC Function Guide. HC s Function Position HC On/Off Off HC defrosting accessorietion/electric /Recircula- air heater Heating function Standard/Comfort Comfort Cooling function Standard/Comfort Comfort Time for comfort mode s 900 s Outdoor temperature limits Heating C -25 C Cool C 15 C Air flow limits Supply air 0 - Max. flow 40% of max. air flow for air handling unit Extract air 0 - Max. flow 40% of max. air flow for air handling unit 46 We reserve the right to alter specifications without notice.

47 4.15 SMART Link The SMART Link function is intended for use for optimum control of the temperature and operation as well as the reading of alarms and the values for a Swegon chiller/heat pump. For more information concerning waterborne heat pumps/chillers, see the Guide to the SMART Link/AQUA Link Functions. For more information concerning DX heat pumps/chillers (Celest + LE), see the Guide to the SMART Link DX (GOLD RX only) Functions. SMART Link Type of unit / Water, heat pump/ Water, chiller/ Water, reversible/ DX, heat pump/ DX, chiller/ DX, reversible Water Heated water (set point) C 40 C Heated water, diff K 3 K Chilled water (set point) 0-20 C 12 C Chilled water, diff K 2 K Outdoor air limit C -20 C (not applicable to the chiller) Optimize, heating On/Off Off Optimize, cooling On/Off Off Optimizing cooling K/min 0.3 K/min regulation speed Optimizing heating K/min 0.3 K/min regulation speed Valve limit, lower 5-90% 75 Valve limit, upper % 95 Delay AQUA Link On/Off Off Pump alarm DX Number of connected units (Celest + ) Comfort mode heating, duration Comfort mode cooling, duration Outdoor air limit /Alarm on closed contact/ Alarm on open contact/contactor function min. 30 min min. 30 min C -20 C (not applicable to the chiller) Defrost delay s 180 s Dead band supply air temp. 0,0-5,0K 0,0K Stabilization time s 240 s Supply air flow limit 2) - 100% of max. air flow for air handling unit 50% of max. air flow for air handling unit Min. and max. limited by preset values in the chiller/heat pump. 2) Min. limited by set value in the chiller/heat pump. We reserve the right to alter specifications without notice. 47

48 4.16 Humidity If the functions Dehumidifying regulation and Humidifying are activated at the same time, Dehumidifying regulation has priority and the possible s for Humidifying are limited to being the same or lower than the for Dehumidifying regulation. There is a delay of 5 minutes between Dehumidifying regulation having stopped and Humidifying starting up (ande vice versa) Status All the relevant values can be read here. Used for performance checks. Humidity Status Humidifying Evaporative humidification (On/Off) This function is suitable together with an evaporative humidifier (not Swegon). The function requires the TBIQ-3-1 IQlogic + module accessory and one TBLZ humidity sensor. See separate installation instructions. Install the humidity sensor in the extract air duct (or in the premises), see drawing. The humidity in the extract air duct (the premises) is regulated between adjustable start and stop limits. Steam humidification (0-10V) The function is appropriate for operation together with a steam humidifier (not supplied by Swegon) and is a variable control system via 0-10 V control signal, as well as a contact function which interlocks the humidifier if the air handling unit stops, if Summer night cool is used or if the humidity in the supply air exceeds the set point by more than 10%. The function requires the TBIQ-3-1 IQlogic Plus module accessory and one TBLZ humidity sensor accessories (for supply air regulation) or two TBLZ /2 humidity sensor accessories (for extract air regulation), see separate installation instructions. Install the humidity sensors in the extract air duct and the supply air duct respectively. See drawing! The function keeps the humidity level constant in the extract air duct (the premises) by regulating the humidity in the supply air. In order to prevent the humidity in the supply air from being too high, it is restricted to a maximum limit. Alternatively the humidity in the supply air duct can be kept constant by selecting a regulating humidity sensor in the supply air. The set point cannot be set higher than the max limit. If the dehumidification function is activated, the max limit cannot be set higher than the set point for dehumidification. Humidifying /On/Off/ 0-10V Regulation sensor Supply air/extract air Supply air Evaporative Start 10-95%RH 40%RH Stop 10-95%RH 45%RH Steam Set point 10-95%RH 30%RH Max. supply air 10-95%RH 80%RH Humidifying Example, steam humidification TBLZ Humidity sensor, extract air TBLZ Humidity sensor, supply air 48 We reserve the right to alter specifications without notice.

49 Dehumidifying The function is intended for dehumidifying the supply air in order to prevent condensation in the supply air duct or in connected air conditioning products. The dehumidification regulation function controls the humidity in the supply air duct or the extract air duct by means of an air cooler and an air heater for reheating. The function requires that an air cooler be mounted upstream of the air heater in the supply air duct. See the example to the right. If control of the humidity in the supply air duct is required, install a TBLZ humidity sensor in the supply air duct. If control of the humidity in the extract air duct is required, install a TBLZ humidity sensor in the extract air duct and a TBLZ humidity sensor in the supply air duct. Connect the sensor to the AHU. See separate installation instructions. Cooling energy is emitted to condense the moisture in the supply airflow, which then is heated to the desired supply air temperature. This causes a reduction in the moisture content of the supply air. The cooling unit used must be sized so that the temperature of the supply air will be below the dew point, otherwise no condensation will arise and no dehumidification will occur. Dehumidifying Example: Dehumidification regulation TBLZ Humidity sensor Temperature sensor, supply air TBLZ Humidity sensor s Dehumidification /Supply air/extract air Supply air - relative humidity 10-90%RH 50%RH Extract air - relative humidity 10-90%RH 50%RH Humidifier alarm The alarm input can be selected to closed circuit, open circuit or contactor function. Humidifier alarm Alarm input /Closed circuit/open circuit/contactor function Closed circuit involves closing the circuit in order to initiate an alarm. Open circuit involves opening the circuit in order to initiate an alarm. Contactor function involves the use of an auxiliary contact from a contactor, which controls the humidifier. The aux. contact is connected to the alarm input. We reserve the right to alter specifications without notice. 49

50 4.17 ReCO 2 The ReCO 2 function is designed for ensuring the correct air quality or air temperature, by means of recirculating extract air and minimizing the inflow of outdoor air. The function can be used in ventilation systems in which recirculated air intermixture is acceptable. The function presupposes that the outdoor air damper and the damper in the air recirculation section are equipped with modulating damper actuators. Lower outdoor air and exhaust air flows as well as lower extract air fan speed enable the unit to consume less power. A separate air quality sensor continuously measures the air quality of the ventilation system. The pressure drop across the rotor must then be calibrated to establish a reference pressure drop for the function. Calibration is put into effect by Calibration to the On position. For more information, see the ReCO 2 function guide. Regulation mode CO2/VOC, operating mode CO2/VOC free cooling Temperature mode / CO2/VOC / CO2/VOC and air flow boost On/Off /Heat sequence/cool sequence/heat and cool sequence On/Off Off Temperature free On cooling CO2/VOC Set point 0-100% 50% CO2, set point ppm 1000 ppm VOC, set point ppm 1500 ppm Min. outdoor air 25% of max. airflow for air handling unit Min. exhaust air 25% of max. airflow for air handling unit Calibration On/Off Off Temperature Min. outdoor air 25% of max. airflow for air handling unit Min. exhaust air 25% of max. airflow for air handling unit Calibration On/Off Off ReCO 2 Exhaust air Outdoor air Extract air Supply air Pressure sensor for outdoor air measurement Outdoor airflow kept constant by pressure sensor When the recirculation damper opens the extract air fan speed decreases and vice versa. The is the same as the AHU's min. - max. s We reserve the right to alter specifications without notice.

51 4.18 All Year Comfort The All Year Comfort function controls, via control valves, the supply flow temperature to the comfort modules, cooling beams, perimeter wall units, etc. The water temperature is measured by two strap-on temperature sensors mounted on the water pipe of each circuit. All Year Comfort has functions for outdoor compensation, room compensation, night compensation, dew point compensation as well as the monitoring and exercising of pumps and valves. For more information, see the All Year Comfort function guide. Function /Cooling water/heating water/ Cooling water and heating water Chilled water Chilled water 5-30 C 14 C Outdoor temp compensation On/Off Off Outdoor temp X C 10 C Outdoor temp X C 20 C Outdoor temp X C 25 C Outdoor temp X C 30 C Chilled water temp Y C 22 C Chilled water temp Y C 18 C Chilled water temp Y C 14 C Chilled water temp Y C 12 C Outdoor temp for pump start C 10 C Outdoor temp for pump stop C 7 C Room temp compensation On/Off Off Room temp. set point 0-40 C 21 C Room temp. P-band 1-10 K 5 K Room comp. night block On/Off Off Night compensation On/Off Off Night reduction 0-10 K 2 K Time channel 1/2 start of night 00:00-23:59 00:00 Time channel 1/2 end of night 00:00-23:59 00:00 Time channel 1/2 period / Monday/ Tuesday/ Wednesday/ Thursday/Friday/ Saturday/Sunday Mon - Fri/Mon - Sun/ Sat - Sun Dew point compensation On/Off Off Air flow compensation On/Off Off Periodic operation pump On/Off On Periodic operation valve exercising On/Off Off Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Pump alarm /Alarm on closed contact/alarm on open contact/ Contactor function Valve alarm On/Off Off All Year Comfort Heated water Heated water C 30 C Outdoor temp compensation On/Off Off Outdoor temp X C -20 C Outdoor temp X C 0 C Outdoor temp X C 5 C Outdoor temp X C 15 C Heated water temp Y C 40 C Heated water temp Y C 30 C Heated water temperatue Y C 20 C Heated water temp Y C 15 C Outdoor temp for pump start C 15 C Outdoor temp for pump stop C 18 C Room temp compensation On/Off Off Room temp. set point 0-40 C 21 C Room temp. P-band 1-10 K 5 K Room comp. night block On/Off Off Night compensation On/Off Off Night reduction 0-10 K -2 K Time channel 1/2 start of night 00:00-23:59 00:00 Time channel 1/2 end of night 00:00-23:59 00:00 Time channel 1/2 period / Monday/ Tuesday/ Wednesday/ Thursday/Friday/ Saturday/Sunday Mon - Fri/Mon - Sun/ Sat - Sun Air flow compensation On/Off Off Periodic operation pump On/Off On Periodic operation valve exercising On/Off Off Periodic operation interval hrs. 24 hrs. Periodic operation period 0-60 min. 3 min. Pump alarm /Alarm on closed contact/alarm on open contact/ Contactor function Valve alarm On/Off Off Omitted if the outdoor temperature compensation is selected. We reserve the right to alter specifications without notice. 51

52 4.19 MIRU Roof ventilator MIRUVENT, version MIRU-1 and -2 Up to ten power roof ventilators with MIRU Control equipment can be connected to one GOLD air handling unit by means of bus communication. If one or several power roof ventilator(s) is/are stopped via the control panel on the corresponding MIRU Control, the power roof ventilator(s) cannot be started via the GOLD unit hand-held terminal. The s in the hand-held micro terminal of the GOLD unit override the s in the MIRU Control s control panel. It is possible in the hand-held micro terminal to select whether the power roof ventilator should be controlled in parallel with the GOLD unit, and whether it should follow the low-speed/ high-speed operating modes of the air handling unit. The balanced ventilation function can be used if the power roof ventilators are used for variable flow. It is then possible to select which power roof ventilator(s) is/are to be included in the function. In the case of balanced extract air, all the airflows of the activated power roof ventilators are added together. The extract airflow in the GOLD unit is decreased by the corresponding volume. In this way the supply airflow will be the same as the total extract airflow and balanced ventilation will be achieved inside the building. In the case of balanced supply air, all the airflows of the activated power roof ventilators are added together. The supply airflow in the GOLD unit is increased by the corresponding volume. In this way the supply airflow will be the same as the total extract airflow and balanced ventilation will be achieved inside the building. The function presupposes that pressure sensors for flow measurement and possible pressure regulation are connected to MIRO Control. All the time channels available in MIRU Control can be set separately for each connected power roof ventilator via the GOLD unit hand-held micro terminal. For a description of the function, see the separate Guide to the MIRU Control Functions. Depending on the function selected in MIRU Control, it is possible to set the desired set point for pressure or flow, low speed and high speed, in the GOLD unit hand-held micro terminal. For a description of the function, see the separate Guide to the MIRU Control Functions. MIRU Quantity MIRUVENTfans Fan numbers 1 10, function 0-10 pcs. 0 /Parallel start/ Parallel low speed/high speed/parallel start and low speed/high speed /Supply air/extract air Fan numbers 1 10, balance function Fans 1 10 low speed Pa 100 Fans 1 10 low speed m3/s 0 Fans 1 10 high speed Pa 200 Fans 1 10 high speed m3/s 0 Fans 1 10, channel 1 4 action Low speed, Mon., Low speed Tue., low speed Wed., etc. Low speed, Mon. Fri. Low speed, Sat. Sun. Low speed, Mon. Sun. High speed Mon., High speed Tue., High speed Wed., etc. High speed, Mon. Fri. High speed, Sat. Sun. High speed, Mon. Sun. Start time 00:00-00:00 00:00 Stop time 00:00-00:00 00: We reserve the right to alter specifications without notice.

53 Roof ventilator MIRUVENT, version MIRU-3 The MIRU function can control up to three roof ventilators of the type MIRUVENT-3. All s are made on the GOLD air handling unit s hand-held terminal. MIRU has functions for operating levels, outdoor compensation, parallel function, balance function, control function and timer. For further information, see the function guide MIRU. Quantity MIRUVENTfans 0-3 pcs. 0 Fans 1-3 operating mode Fans 1-3 low speed Pa 100 Fans 1-3 low speed m3/s 30% of max. air flow Fans 1-3 high speed Pa 200 Fans 1-3 high speed m3/s 70% of max. air flow Fans 1-3 max. speed % 100% Fans 1-3 outdoor compensation /Low speed/ function High speed/low speed and High speed X1, outdoor temp C -20 C X2, outdoor temp C -10 C X3, outdoor temp C +10 C X4, outdoor temp C +20 C Flow Y1, air flow set point 25% of max. air flow Y2, air flow set point 25% of max. air flow Y3, air flow set point 25% of max. air flow Y4, air flow set point 25% of max. air flow Pressure Y1, pressure set point Pa 100 Pa Y2, pressure set point Pa 100 Pa Y3, pressure set point Pa 100 Pa Y4, pressure set point Pa 100 Pa Fans 1-3, function Fans 1-3, balance function /Parallel start/ Parallel low speed/high speed/parallel start and low speed/high speed /Supply air/extract air MIRU Fans 1-3, control function Air flow/duct pressure/ duct pressure and air flow measurement Air flow Fans 1-3, size 2) MIRU Fans 1-3, duct 1-4 action Low speed, Mon., Low speed Tue., low speed Wed., etc. Low speed, Mon. Fri. Low speed, Sat. Sun. Low speed, Mon. Sun. High speed Mon., High speed Tue., High speed Wed., etc. High speed, Mon. Fri. High speed, Sat. Sun. High speed, Mon. Sun. Start time 00:00-00:00 00:00 Stop time 00:00-00:00 00:00 See function guide MIRU. 2) MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU , MIRU We reserve the right to alter specifications without notice. 53

54 4.20 Inputs/Outputs Can for example be used if the air handling unit will be controlled/monitored via microprocessor substation or a PLC system. External operation module 3/6 requires the TBIQ-3-2 IQlogic + module accessory; external communication module A/B/C requires the TBIQ-3-1 accessory. See separate installation instructions. Inputs/Outputs External operation module 3/6 Digital output 1/2 mode Digital input 1/2 Analogue output 1 Analogue output 2 Analogue input 1/2* External communication module A/B/C /Air handling unit in operation/air handling unit in auto operation/ Air handling unit in manual operation/air handling unit in low speed operation/air handling unit in high speed operation/a alarm/b alarm/damper relay/heat exchanger/ Heat exchanger defrost/reheat/ Reheating power reduction/heating Boost/Morning Boost/Intermittent night heat/airflow down regulation/ Extra reg. sequence 1 heat/extra reg. sequence 1 cool/cooling/cooling Boost/Summer night cool/ Supply air fan in operation/extract air fan in operation/internal fire alarm tripped/ External fire alarm 1/External fire alarm 2/External fire alarm 1 or 2/Any fire alarm/external fire alarm 1 with priority/external fire alarm 2 with priority//internal fire alarm tripped with priority/preheating /Alarm reset/stop AYC heated water/stop AYC chilled water/ MIRU 1-3 external stop/miru 1-3 external low speed/miru 1-3 external high speed/reheating alarm input/cooling alarm input 1/Cooling alarm input 2 Indicates present supply airflow, from 0 to air handling unit s max. speed (%) Indicates present extract airflow, from 0 to air handling unit s max. speed (%) /Set point displacement/set point displacement, supply air/set point displacement, extract air External communication On/Off Off module A/B/C Temperature On/Off Off sensor no. 1 Temperature sensor no. 2 On/Off Off * If analogue inputs 1 and 2 are both selected for setpoint displacement, only analogue input 1 will be used We reserve the right to alter specifications without notice.

55 4.21 Communication The potential for communication and monitoring is integrated as standard into the AHU. The AHU is ready to be connected via EIA-485. See Section 6.2 Wiring Terminal Connections in the Operating & Maintenance Instructions. Communication can also be established via Ethernet without software other than an ordinary web browser such as Internet Explorer. Further information about interfaces, protocols and configuration is available at (com). Communication External Port B For communication with network. Specify protocol and s for Ethernet. External Port B DHCP On/Off Off IP address (static or dynamic) Net mask Default GATEWAY Primary DNS Secondary DNS MAC address Not adjustable Wireless LAN The AHU's control unit is, as standard, equipped with Wi-Fi function and can be connected to e.g. a wireless hand-held terminal (accessory), portable computer or smart phone. The password can, via the hand-held terminal, be changed to an optional combination of digits. The password and the SSID can also be entered in alphabetical form on the AHU's web page. To connect to a portable computer or smart phone, note the s on SSID, password and IP address. Activate Wi-Fi in the portable computer or smart phone and search for the wireless network (with the same name as the SSID). Connect by entering the password. Open your web browser and update the page. The web browser will then automatically connect to the control circuit card. To log on, write your user name (local or installation), and enter the password (local = 0000, installation = 1111, factory ). Wireless LAN Wireless LAN On/Off Off SSID Optional GOLD Password (WPA2-PSK) IP address Not adjustable Net mask Not adjustable MAC address Not adjustable Not adjustable Channel (frequency band) Certain smart phones require at least six characters. We reserve the right to alter specifications without notice. 55

56 You can select whether the AHU shall handle outgoing here. The s can be entered on the AHU web page. See separate instructions. There is a button for test transmission. SMTP server External/Internal External SMTP server Optional address SMTP port number 25 SMTP username Optional, to be entered on the web page SMTP password Optional, to be entered on the web page Encryption On/Off Off sender Optional, to be entered on the web page reply path Optional, to be entered on the web page EIA-485 Specify protocol and s for EIA-485. EIA-485 Protocol /Modbus/EXOline/ Modbus Metasys N2 Open/LON Baud rate 4800/9600/19200/ Parity None/Even/Odd None Stopbits 1/2 2 Modbus ID/ Metasys ID/PLA ELA Shortest feedback delay ms 0 ms Modbus TCP Specify s for Modbus TCP. Modbus TCP Port number 502 Approved client IP address Approved client netmask BACnet IP Enter the BACnet IP s. BACnet IP Network number Ext. B 0 Internal network number A 0 Device ID 0 Port number We reserve the right to alter specifications without notice.

57 EXOline TCP EXOline can be activated and enter the port number. EXOline TCP Port number PLA ELA Operation level communication It is possible to change the operation level communication here. Operation level ommunication Operation level communication /Total stop/low speed/high speed/normal stop/ Extended normal stop We reserve the right to alter specifications without notice. 57

58 4.22 Base Used to save, load and restore s and to automatically generate a completed commissioning protocol. Date and time for the latest saved backup copy can be viewed. The AHU's s/communication s are saved/loaded to/ from the control unit's internal memory or external SD circuit card that can be inserted into the control unit. The AHU s involve all s except communication s. Communication s involve all s (except AHU s). After completing installation of the ventilation unit, a commissioning protocol can be created by entering a number of details and then pressing a button to generate a commissioning protocol. The commissioning protocol is then saved as a html-file in a new directory on the SD card. The file can be downloaded, displayed, saved and sent. Base Air handling s Export air handling s Import air handling s Communication s Export communication s Import communication s Alternative Export to local backup/export to SD card Import from local backup/import from SD card Export to local backup/export to SD card Import from local backup/import from SD card 4.23 Users The requirements for password can be activated here under User level (local). The password is always Requirements for user password On/Off Off Users IQnavigator user 58 We reserve the right to alter specifications without notice.

59 4.24 Notes Notes can be read here. Notes can only be written on the AHU's web page. Notes 4.25 Manual test NB! Manual test running can cause indoor comfort problems. There is also risk of overloading the system. The responsibility for discomfort and overload rests totally on the person who activates the function. When you enter manual test, select safe mode or operating mode. Safe mode involves stopping the AHU and being able to run each installed function separately or together. Operating mode involves permitting the AHU to continue to operate in the normal operating mode and installed functions can be influenced manually. Manual test operation can take place for testing the inputs and outputs, fans and heat exchanger, etc. Used for installation or troubleshooting to test that wired connections and functions operate correctly. Certain alarms, functions and normal control modes will be blocked while manual testing is in progress. Each image indicates which functions can be test run. Manual test We reserve the right to alter specifications without notice. 59